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Novel three-dimensional diffuse reflection and wave absorption compatible camouflage coating

A three-dimensional, stealth coating technology, applied in the direction of reflection/signal coatings, radiation-absorbing coatings, anti-corrosion coatings, etc., can solve the problems of reducing the reflection cross-sectional area, limited wave-absorbing range and limited wave-absorbing ability of planar stealth coatings, etc.

Pending Publication Date: 2021-12-21
上海天浮高技术开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, changing the shape of the aircraft sacrifices too much aerodynamics and aircraft performance; in addition, the aircraft already in service can no longer change the shape and structure to achieve stealth, so that a large number of active aircraft are flying naked
[0007] Existing stealth coatings are all two-dimensional planar, no matter what chemical composition they are, they cannot form diffuse reflection to reduce the reflection cross-sectional area; in addition, the absorbing range of planar stealth coatings is limited (none of them are broadband compatible absorbing), and the absorbing The wave capability is limited (it cannot absorb waves in three-dimensional, multi-dimensional and multiple ways), which makes the stealth effect of the aircraft obviously insufficient
[0008] The present invention overcomes the shortcomings of existing stealth coatings without three-dimensional diffuse reflection surface structure and three-dimensional multi-dimensional, multi-mode wave absorption, and provides multi-functional compatible stealth paint with three-dimensional diffuse reflection + three-dimensional, multi-mode wave absorption

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] 1. Aircraft stealth:

[0031] The requirement for aircraft stealth is primarily radar / infrared stealth. The requirements for stealth coatings are not only broadband, light and thin, but also high strength and good environmental resistance.

[0032] ① Use two-component polyurethane foaming agent + ferrite nano powder, mix evenly and spray the surface of the aircraft seamlessly. After foaming and curing, a seamless low-density rigid polyurethane ferrite foam layer is formed. The foam thickness is 3 mm or so;

[0033] Its role:

[0034] One is to form a three-dimensional diffuse reflection of ferrite on the surface of the aircraft + multiple refraction of ferrite bubbles + multiple diffuse reflections on the inner wall of the bubble + a heat dissipation coating for high-frequency electronic polarization of the bubble medium; to achieve high-efficiency diffuse reflection + Multi-dimensional, multi-mode radar wave magnetic field component absorption;

[0035] The second ...

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PUM

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Abstract

The invention provides a novel three-dimensional diffuse reflection and wave absorption compatible camouflage coating. The coating can be widely applied to compatible stealth of buildings such as airplanes, tanks, missile launching vehicles, military depots, airports (including runways and hangars) and the like; the coating is characterized in that the surface of a target body can be changed into a diffuse reflection surface without changing the appearance structure of the target body, and multiple deep-layer wave absorption modes are adopted, so that the reflection direction of a detection signal is changed, and the receivable echo signal is reduced by four orders of magnitude (ten thousand times); a small hollow sphere structure or a small paraboloid structure of the coating forms an optimal diffuse reflection surface and a deep refraction + multiple diffuse reflection + three-dimensional medium surface to generate high-frequency electron polarization, the direction of a reflected signal is changed for multiple times, and signal energy is changed into heat to be dissipated; radar / infrared / noise compatible stealth is achieved, and meanwhile the surface strength and toughness of a target body are greatly improved.

Description

Technical field: [0001] The invention belongs to stealth coatings for aircraft and other military equipment. Background technique [0002] Modern warfare is a contest of science and technology. Over-the-horizon radar, infrared, sonar detection and counter-detection measures are the main means. Whoever masters these advanced offensive and defensive technologies will be able to take the initiative in war and win the victory. [0003] Over-the-horizon detectors are mainly based on radar. No matter what kind of detection, there is a common working principle, which is to use the reflected signal to detect and lock the target. If there is no reflected signal or the reflected signal is very weak, it will not be possible to find the locked target. The larger the reflection area, the more signals are reflected back, and the stronger the signal received by the radar; and only the reflected signal consistent with the incident direction will be received by the radar; practice has pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D175/02C09D5/33C09D5/30C09D5/32C09D5/25C09D5/08C09D7/61C08J9/00B05D5/06B05D7/24C08L75/04
CPCC09D175/04C09D175/02C09D5/004C09D5/30C09D5/32C09D5/00C09D5/08C09D7/61C08J9/0071B05D5/063B05D7/24B05D7/58C08K2201/011C08K2003/2265C08J2375/04C08K3/22C08K3/042
Inventor 曹伟华
Owner 上海天浮高技术开发有限公司
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